NTE1228 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit Audio Power Amp, 2.1W

NTE1228
Integrated Circuit
Audio Power Amp, 2.1W
Features:
D AF Output Power
D Sufficient Regulation Under Dry Battery Operation
Absolute Maximum Ratings: (T_A = +25°C unless otherwise specified)
Maximum Supply Voltage, V_CCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13V
Allowable Power Dissipation, P_dmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2W
Allowable Power Dissipation (Note 1), P_dmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.25W
Operating Temperature Range, T_opr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Note 1. With 50 x 50mm² printed board for radiator.
Recommended Operation Condition: (T_A = +25°C unless otherwise specified)
Recommended Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V
Load Resistance, R_L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4,8Ω
Electrical Characteristics: (T_A = +25°C, V_CC = 9V, R_L = 4Ω, f = 1kHz unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Quiescent Current
Voltage Gain
I_CCO
VG Open Loop
– 15 25 mA
– 70 – dB
At Appointed Circuit
42 45 48 dB
Output Power
Total Harmonic Distortion
Input Resistance
Output Noise Voltage
P_O
THD
r_i
V_NO
THD = 10%, R_L = 4Ω
THD = 10%, R_L = 8Ω
P_O = 250mW
R_g = 10kΩ
R_g = 0
1.3 2.1 – W
– 1.4 – W
– 0.5 1.5 %
12k 20k – Ω
– – 3 mV
– – 1.0 mV